<?xml version="1.0" encoding="ascii"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
          "DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
  <title>ProvCon.TFTP.Protocol</title>
  <link rel="stylesheet" href="epydoc.css" type="text/css" />
  <script type="text/javascript" src="epydoc.js"></script>
</head>

<body bgcolor="white" text="black" link="blue" vlink="#204080"
      alink="#204080">
<!-- ==================== NAVIGATION BAR ==================== -->
<table class="navbar" border="0" width="100%" cellpadding="0"
       bgcolor="#a0c0ff" cellspacing="0">
  <tr valign="middle">
  <!-- Home link -->
      <th>&nbsp;&nbsp;&nbsp;<a
        href="ProvCon-module.html">Home</a>&nbsp;&nbsp;&nbsp;</th>

  <!-- Tree link -->
      <th>&nbsp;&nbsp;&nbsp;<a
        href="module-tree.html">Trees</a>&nbsp;&nbsp;&nbsp;</th>

  <!-- Index link -->
      <th>&nbsp;&nbsp;&nbsp;<a
        href="identifier-index.html">Indices</a>&nbsp;&nbsp;&nbsp;</th>

  <!-- Help link -->
      <th>&nbsp;&nbsp;&nbsp;<a
        href="help.html">Help</a>&nbsp;&nbsp;&nbsp;</th>

  <!-- Project homepage -->
      <th class="navbar" align="right" width="100%">
        <table border="0" cellpadding="0" cellspacing="0">
          <tr><th class="navbar" align="center"
            >docsis-provisioning</th>
          </tr></table></th>
  </tr>
</table>
<table width="100%" cellpadding="0" cellspacing="0">
  <tr valign="top">
    <td width="100%">
      <span class="breadcrumbs">
        <a href="ProvCon-module.html">Package&nbsp;ProvCon</a> ::
        <a href="ProvCon.TFTP-module.html">Package&nbsp;TFTP</a> ::
        Module&nbsp;Protocol
      </span>
    </td>
    <td>
      <table cellpadding="0" cellspacing="0">
        <!-- hide/show private -->
        <tr><td align="right"><span class="options">[<a href="javascript:void(0);" class="privatelink"
    onclick="toggle_private();">hide&nbsp;private</a>]</span></td></tr>
        <tr><td align="right"><span class="options"
            >[<a href="frames.html" target="_top">frames</a
            >]&nbsp;|&nbsp;<a href="ProvCon.TFTP.Protocol-pysrc.html"
            target="_top">no&nbsp;frames</a>]</span></td></tr>
      </table>
    </td>
  </tr>
</table>
<h1 class="epydoc">Source Code for <a href="ProvCon.TFTP.Protocol-module.html">Module ProvCon.TFTP.Protocol</a></h1>
<pre class="py-src">
<a name="L1"></a><tt class="py-lineno">  1</tt>  <tt class="py-line"><tt class="py-comment">#!/bin/env python</tt> </tt>
<a name="L2"></a><tt class="py-lineno">  2</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">struct</tt> </tt>
<a name="L3"></a><tt class="py-lineno">  3</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">socket</tt> </tt>
<a name="L4"></a><tt class="py-lineno">  4</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt class="py-name">time</tt> <tt class="py-keyword">import</tt> <tt class="py-name">time</tt> </tt>
<a name="L5"></a><tt class="py-lineno">  5</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt class="py-name">contextlib</tt> <tt class="py-keyword">import</tt> <tt class="py-name">contextmanager</tt> </tt>
<a name="Packet"></a><div id="Packet-def"><a name="L6"></a><tt class="py-lineno">  6</tt>  <tt class="py-line"> </tt>
<a name="L7"></a><tt class="py-lineno">  7</tt> <a class="py-toggle" href="#" id="Packet-toggle" onclick="return toggle('Packet');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="ProvCon.TFTP.Protocol.Packet-class.html">Packet</a><tt class="py-op">:</tt> </tt>
</div><div id="Packet-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="Packet-expanded"><a name="L8"></a><tt class="py-lineno">  8</tt>  <tt class="py-line">    <tt class="py-docstring">"""TFTP.Protocol.Packet</tt> </tt>
<a name="L9"></a><tt class="py-lineno">  9</tt>  <tt class="py-line"><tt class="py-docstring">    The Packet class provides encoding and decoding services for</tt> </tt>
<a name="L10"></a><tt class="py-lineno"> 10</tt>  <tt class="py-line"><tt class="py-docstring">    TFTP packets as defined in RFC1350:</tt> </tt>
<a name="L11"></a><tt class="py-lineno"> 11</tt>  <tt class="py-line"><tt class="py-docstring">           2 bytes    string   1 byte     string   1 byte</tt> </tt>
<a name="L12"></a><tt class="py-lineno"> 12</tt>  <tt class="py-line"><tt class="py-docstring">           -----------------------------------------------</tt> </tt>
<a name="L13"></a><tt class="py-lineno"> 13</tt>  <tt class="py-line"><tt class="py-docstring">    RRQ/  | 01/02 |  filename  |   0  |    mode    |   0  |</tt> </tt>
<a name="L14"></a><tt class="py-lineno"> 14</tt>  <tt class="py-line"><tt class="py-docstring">    WRQ    -----------------------------------------------</tt> </tt>
<a name="L15"></a><tt class="py-lineno"> 15</tt>  <tt class="py-line"><tt class="py-docstring">           2 bytes    2 bytes       n bytes</tt> </tt>
<a name="L16"></a><tt class="py-lineno"> 16</tt>  <tt class="py-line"><tt class="py-docstring">           ---------------------------------</tt> </tt>
<a name="L17"></a><tt class="py-lineno"> 17</tt>  <tt class="py-line"><tt class="py-docstring">    DATA  | 03    |   blockno  |    data    |</tt> </tt>
<a name="L18"></a><tt class="py-lineno"> 18</tt>  <tt class="py-line"><tt class="py-docstring">           ---------------------------------</tt> </tt>
<a name="L19"></a><tt class="py-lineno"> 19</tt>  <tt class="py-line"><tt class="py-docstring">           2 bytes    2 bytes</tt> </tt>
<a name="L20"></a><tt class="py-lineno"> 20</tt>  <tt class="py-line"><tt class="py-docstring">           --------------------</tt> </tt>
<a name="L21"></a><tt class="py-lineno"> 21</tt>  <tt class="py-line"><tt class="py-docstring">    ACK   | 04    |   blockno  |</tt> </tt>
<a name="L22"></a><tt class="py-lineno"> 22</tt>  <tt class="py-line"><tt class="py-docstring">            --------------------</tt> </tt>
<a name="L23"></a><tt class="py-lineno"> 23</tt>  <tt class="py-line"><tt class="py-docstring">           2 bytes  2 bytes        string        1 byte</tt> </tt>
<a name="L24"></a><tt class="py-lineno"> 24</tt>  <tt class="py-line"><tt class="py-docstring">           --------------------------------------------</tt> </tt>
<a name="L25"></a><tt class="py-lineno"> 25</tt>  <tt class="py-line"><tt class="py-docstring">    ERROR | 05    |  errorcode |   errormessage |   0  |</tt> </tt>
<a name="L26"></a><tt class="py-lineno"> 26</tt>  <tt class="py-line"><tt class="py-docstring">           --------------------------------------------</tt> </tt>
<a name="L27"></a><tt class="py-lineno"> 27</tt>  <tt class="py-line"><tt class="py-docstring">    </tt> </tt>
<a name="L28"></a><tt class="py-lineno"> 28</tt>  <tt class="py-line"><tt class="py-docstring">    Two provided methods are: </tt> </tt>
<a name="L29"></a><tt class="py-lineno"> 29</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L30"></a><tt class="py-lineno"> 30</tt>  <tt class="py-line"><tt class="py-docstring">    Packet.decode</tt> </tt>
<a name="L31"></a><tt class="py-lineno"> 31</tt>  <tt class="py-line"><tt class="py-docstring">    Packet.encode</tt> </tt>
<a name="L32"></a><tt class="py-lineno"> 32</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L33"></a><tt class="py-lineno"> 33</tt>  <tt class="py-line"><tt class="py-docstring">    Packets may be constructed by using the 'decode' method, providing</tt> </tt>
<a name="L34"></a><tt class="py-lineno"> 34</tt>  <tt class="py-line"><tt class="py-docstring">    keyword arguments to the constructor, or by manually setting</tt> </tt>
<a name="L35"></a><tt class="py-lineno"> 35</tt>  <tt class="py-line"><tt class="py-docstring">    properties whose names correspond to packet fields as listed above.</tt> </tt>
<a name="L36"></a><tt class="py-lineno"> 36</tt>  <tt class="py-line"><tt class="py-docstring">    </tt> </tt>
<a name="L37"></a><tt class="py-lineno"> 37</tt>  <tt class="py-line"><tt class="py-docstring">    examples:</tt> </tt>
<a name="L38"></a><tt class="py-lineno"> 38</tt>  <tt class="py-line"><tt class="py-docstring">    &gt;&gt;&gt; rrq = Packet(opcode=Packet.RRQ, filename="test.bin", mode="octet")</tt> </tt>
<a name="L39"></a><tt class="py-lineno"> 39</tt>  <tt class="py-line"><tt class="py-docstring">    &gt;&gt;&gt; err = Packet(opcode=Packet.ERROR, errorcode=0,errormessage="My custom error message.")</tt> </tt>
<a name="L40"></a><tt class="py-lineno"> 40</tt>  <tt class="py-line"><tt class="py-docstring">    &gt;&gt;&gt; socket.send (rrq.encode())</tt> </tt>
<a name="L41"></a><tt class="py-lineno"> 41</tt>  <tt class="py-line"><tt class="py-docstring">    """</tt> </tt>
<a name="L42"></a><tt class="py-lineno"> 42</tt>  <tt class="py-line">    <tt class="py-comment">#opcodes</tt> </tt>
<a name="L43"></a><tt class="py-lineno"> 43</tt>  <tt class="py-line">    <tt id="link-0" class="py-name" targets="Variable ProvCon.TFTP.Protocol.Packet.RRQ=ProvCon.TFTP.Protocol.Packet-class.html#RRQ"><a title="ProvCon.TFTP.Protocol.Packet.RRQ" class="py-name" href="#" onclick="return doclink('link-0', 'RRQ', 'link-0');">RRQ</a></tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
<a name="L44"></a><tt class="py-lineno"> 44</tt>  <tt class="py-line">    <tt id="link-1" class="py-name" targets="Variable ProvCon.TFTP.Protocol.Packet.WRQ=ProvCon.TFTP.Protocol.Packet-class.html#WRQ"><a title="ProvCon.TFTP.Protocol.Packet.WRQ" class="py-name" href="#" onclick="return doclink('link-1', 'WRQ', 'link-1');">WRQ</a></tt> <tt class="py-op">=</tt> <tt class="py-number">2</tt> </tt>
<a name="L45"></a><tt class="py-lineno"> 45</tt>  <tt class="py-line">    <tt id="link-2" class="py-name" targets="Variable ProvCon.TFTP.Protocol.Packet.DATA=ProvCon.TFTP.Protocol.Packet-class.html#DATA"><a title="ProvCon.TFTP.Protocol.Packet.DATA" class="py-name" href="#" onclick="return doclink('link-2', 'DATA', 'link-2');">DATA</a></tt> <tt class="py-op">=</tt> <tt class="py-number">3</tt> </tt>
<a name="L46"></a><tt class="py-lineno"> 46</tt>  <tt class="py-line">    <tt id="link-3" class="py-name" targets="Variable ProvCon.TFTP.Protocol.Packet.ACK=ProvCon.TFTP.Protocol.Packet-class.html#ACK"><a title="ProvCon.TFTP.Protocol.Packet.ACK" class="py-name" href="#" onclick="return doclink('link-3', 'ACK', 'link-3');">ACK</a></tt> <tt class="py-op">=</tt> <tt class="py-number">4</tt> </tt>
<a name="L47"></a><tt class="py-lineno"> 47</tt>  <tt class="py-line">    <tt id="link-4" class="py-name" targets="Variable ProvCon.TFTP.Protocol.Packet.ERROR=ProvCon.TFTP.Protocol.Packet-class.html#ERROR"><a title="ProvCon.TFTP.Protocol.Packet.ERROR" class="py-name" href="#" onclick="return doclink('link-4', 'ERROR', 'link-4');">ERROR</a></tt> <tt class="py-op">=</tt> <tt class="py-number">5</tt> </tt>
<a name="L48"></a><tt class="py-lineno"> 48</tt>  <tt class="py-line">    <tt class="py-comment">#standard error messages</tt> </tt>
<a name="L49"></a><tt class="py-lineno"> 49</tt>  <tt class="py-line">    <tt id="link-5" class="py-name" targets="Variable ProvCon.TFTP.Protocol.Packet.ERRORMESSAGE=ProvCon.TFTP.Protocol.Packet-class.html#ERRORMESSAGE"><a title="ProvCon.TFTP.Protocol.Packet.ERRORMESSAGE" class="py-name" href="#" onclick="return doclink('link-5', 'ERRORMESSAGE', 'link-5');">ERRORMESSAGE</a></tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt>  </tt>
<a name="L50"></a><tt class="py-lineno"> 50</tt>  <tt class="py-line">        <tt class="py-number">0</tt> <tt class="py-op">:</tt> <tt class="py-string">'Other error.'</tt><tt class="py-op">,</tt> </tt>
<a name="L51"></a><tt class="py-lineno"> 51</tt>  <tt class="py-line">        <tt class="py-number">1</tt> <tt class="py-op">:</tt> <tt class="py-string">'File not found.'</tt><tt class="py-op">,</tt> </tt>
<a name="L52"></a><tt class="py-lineno"> 52</tt>  <tt class="py-line">        <tt class="py-number">2</tt> <tt class="py-op">:</tt> <tt class="py-string">'Access violation.'</tt><tt class="py-op">,</tt> </tt>
<a name="L53"></a><tt class="py-lineno"> 53</tt>  <tt class="py-line">        <tt class="py-number">3</tt> <tt class="py-op">:</tt> <tt class="py-string">'Disk full or allocation exceeded.'</tt><tt class="py-op">,</tt> </tt>
<a name="L54"></a><tt class="py-lineno"> 54</tt>  <tt class="py-line">        <tt class="py-number">4</tt> <tt class="py-op">:</tt> <tt class="py-string">'Illegal TFTP operation.'</tt><tt class="py-op">,</tt> </tt>
<a name="L55"></a><tt class="py-lineno"> 55</tt>  <tt class="py-line">        <tt class="py-number">5</tt> <tt class="py-op">:</tt> <tt class="py-string">'Unknown transfer ID.'</tt><tt class="py-op">,</tt> </tt>
<a name="L56"></a><tt class="py-lineno"> 56</tt>  <tt class="py-line">        <tt class="py-number">6</tt> <tt class="py-op">:</tt> <tt class="py-string">'File already exists.'</tt><tt class="py-op">,</tt> </tt>
<a name="L57"></a><tt class="py-lineno"> 57</tt>  <tt class="py-line">        <tt class="py-number">7</tt> <tt class="py-op">:</tt> <tt class="py-string">'No such user.'</tt> </tt>
<a name="L58"></a><tt class="py-lineno"> 58</tt>  <tt class="py-line">    <tt class="py-op">}</tt> </tt>
<a name="L59"></a><tt class="py-lineno"> 59</tt>  <tt class="py-line"> </tt>
<a name="L60"></a><tt class="py-lineno"> 60</tt>  <tt class="py-line">    <tt id="link-6" class="py-name" targets="Variable ProvCon.TFTP.Protocol.Packet.OPCODENAME=ProvCon.TFTP.Protocol.Packet-class.html#OPCODENAME"><a title="ProvCon.TFTP.Protocol.Packet.OPCODENAME" class="py-name" href="#" onclick="return doclink('link-6', 'OPCODENAME', 'link-6');">OPCODENAME</a></tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt> </tt>
<a name="L61"></a><tt class="py-lineno"> 61</tt>  <tt class="py-line">        <tt id="link-7" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.RRQ" class="py-name" href="#" onclick="return doclink('link-7', 'RRQ', 'link-0');">RRQ</a></tt> <tt class="py-op">:</tt> <tt class="py-string">'Read Request'</tt><tt class="py-op">,</tt> </tt>
<a name="L62"></a><tt class="py-lineno"> 62</tt>  <tt class="py-line">        <tt id="link-8" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.WRQ" class="py-name" href="#" onclick="return doclink('link-8', 'WRQ', 'link-1');">WRQ</a></tt> <tt class="py-op">:</tt> <tt class="py-string">'Write Request'</tt><tt class="py-op">,</tt> </tt>
<a name="L63"></a><tt class="py-lineno"> 63</tt>  <tt class="py-line">        <tt id="link-9" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.DATA" class="py-name" href="#" onclick="return doclink('link-9', 'DATA', 'link-2');">DATA</a></tt> <tt class="py-op">:</tt> <tt class="py-string">'Data block'</tt><tt class="py-op">,</tt> </tt>
<a name="L64"></a><tt class="py-lineno"> 64</tt>  <tt class="py-line">        <tt id="link-10" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ACK" class="py-name" href="#" onclick="return doclink('link-10', 'ACK', 'link-3');">ACK</a></tt> <tt class="py-op">:</tt> <tt class="py-string">'Acknowledgement'</tt><tt class="py-op">,</tt> </tt>
<a name="L65"></a><tt class="py-lineno"> 65</tt>  <tt class="py-line">        <tt id="link-11" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ERROR" class="py-name" href="#" onclick="return doclink('link-11', 'ERROR', 'link-4');">ERROR</a></tt> <tt class="py-op">:</tt> <tt class="py-string">'Error'</tt> </tt>
<a name="L66"></a><tt class="py-lineno"> 66</tt>  <tt class="py-line">    <tt class="py-op">}</tt> </tt>
<a name="L67"></a><tt class="py-lineno"> 67</tt>  <tt class="py-line">     </tt>
<a name="Packet.__init__"></a><div id="Packet.__init__-def"><a name="L68"></a><tt class="py-lineno"> 68</tt> <a class="py-toggle" href="#" id="Packet.__init__-toggle" onclick="return toggle('Packet.__init__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="ProvCon.TFTP.Protocol.Packet-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">header_buffer</tt> <tt class="py-op">=</tt> <tt class="py-name">None</tt><tt class="py-op">,</tt> <tt class="py-op">**</tt><tt class="py-param">kkw</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Packet.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Packet.__init__-expanded"><a name="L69"></a><tt class="py-lineno"> 69</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-op">=</tt> <tt class="py-name">kkw</tt><tt class="py-op">.</tt><tt id="link-12" class="py-name" targets="Method ProvCon.dbui.orm.recordsearch.OIDSearchList.get()=ProvCon.dbui.orm.recordsearch.OIDSearchList-class.html#get,Method ProvCon.func.variables.TracedVariable.get()=ProvCon.func.variables.TracedVariable-class.html#get"><a title="ProvCon.dbui.orm.recordsearch.OIDSearchList.get
ProvCon.func.variables.TracedVariable.get" class="py-name" href="#" onclick="return doclink('link-12', 'get', 'link-12');">get</a></tt> <tt class="py-op">(</tt><tt class="py-string">'opcode'</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> </tt>
<a name="L70"></a><tt class="py-lineno"> 70</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">mode</tt> <tt class="py-op">=</tt> <tt class="py-name">kkw</tt><tt class="py-op">.</tt><tt id="link-13" class="py-name"><a title="ProvCon.dbui.orm.recordsearch.OIDSearchList.get
ProvCon.func.variables.TracedVariable.get" class="py-name" href="#" onclick="return doclink('link-13', 'get', 'link-12');">get</a></tt> <tt class="py-op">(</tt><tt class="py-string">'mode'</tt><tt class="py-op">,</tt> <tt class="py-string">'octet'</tt><tt class="py-op">)</tt> </tt>
<a name="L71"></a><tt class="py-lineno"> 71</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">filename</tt> <tt class="py-op">=</tt> <tt class="py-name">kkw</tt><tt class="py-op">.</tt><tt id="link-14" class="py-name"><a title="ProvCon.dbui.orm.recordsearch.OIDSearchList.get
ProvCon.func.variables.TracedVariable.get" class="py-name" href="#" onclick="return doclink('link-14', 'get', 'link-12');">get</a></tt> <tt class="py-op">(</tt><tt class="py-string">'filename'</tt><tt class="py-op">,</tt> <tt class="py-name">None</tt><tt class="py-op">)</tt> </tt>
<a name="L72"></a><tt class="py-lineno"> 72</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt> <tt class="py-op">=</tt> <tt class="py-name">kkw</tt><tt class="py-op">.</tt><tt id="link-15" class="py-name"><a title="ProvCon.dbui.orm.recordsearch.OIDSearchList.get
ProvCon.func.variables.TracedVariable.get" class="py-name" href="#" onclick="return doclink('link-15', 'get', 'link-12');">get</a></tt> <tt class="py-op">(</tt><tt class="py-string">'blockno'</tt><tt class="py-op">,</tt> <tt class="py-name">None</tt><tt class="py-op">)</tt> </tt>
<a name="L73"></a><tt class="py-lineno"> 73</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">data</tt> <tt class="py-op">=</tt> <tt class="py-name">kkw</tt><tt class="py-op">.</tt><tt id="link-16" class="py-name"><a title="ProvCon.dbui.orm.recordsearch.OIDSearchList.get
ProvCon.func.variables.TracedVariable.get" class="py-name" href="#" onclick="return doclink('link-16', 'get', 'link-12');">get</a></tt> <tt class="py-op">(</tt><tt class="py-string">'data'</tt><tt class="py-op">,</tt> <tt class="py-name">None</tt><tt class="py-op">)</tt> </tt>
<a name="L74"></a><tt class="py-lineno"> 74</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errorcode</tt> <tt class="py-op">=</tt> <tt class="py-name">kkw</tt><tt class="py-op">.</tt><tt id="link-17" class="py-name"><a title="ProvCon.dbui.orm.recordsearch.OIDSearchList.get
ProvCon.func.variables.TracedVariable.get" class="py-name" href="#" onclick="return doclink('link-17', 'get', 'link-12');">get</a></tt> <tt class="py-op">(</tt><tt class="py-string">'errorcode'</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> </tt>
<a name="L75"></a><tt class="py-lineno"> 75</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errormessage</tt> <tt class="py-op">=</tt> <tt class="py-name">kkw</tt><tt class="py-op">.</tt><tt id="link-18" class="py-name"><a title="ProvCon.dbui.orm.recordsearch.OIDSearchList.get
ProvCon.func.variables.TracedVariable.get" class="py-name" href="#" onclick="return doclink('link-18', 'get', 'link-12');">get</a></tt> <tt class="py-op">(</tt><tt class="py-string">'errormessage'</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-19" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ERRORMESSAGE" class="py-name" href="#" onclick="return doclink('link-19', 'ERRORMESSAGE', 'link-5');">ERRORMESSAGE</a></tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errorcode</tt><tt class="py-op">]</tt> <tt class="py-op">)</tt> </tt>
<a name="L76"></a><tt class="py-lineno"> 76</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">valid</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L77"></a><tt class="py-lineno"> 77</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">header_buffer</tt><tt class="py-op">:</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-20" class="py-name" targets="Method ProvCon.TFTP.Protocol.Packet.decode()=ProvCon.TFTP.Protocol.Packet-class.html#decode,Method ProvCon.dbui.meta.field.Field.decode()=ProvCon.dbui.meta.field.Field-class.html#decode"><a title="ProvCon.TFTP.Protocol.Packet.decode
ProvCon.dbui.meta.field.Field.decode" class="py-name" href="#" onclick="return doclink('link-20', 'decode', 'link-20');">decode</a></tt> <tt class="py-op">(</tt><tt class="py-name">header_buffer</tt><tt class="py-op">)</tt> </tt>
</div><a name="L78"></a><tt class="py-lineno"> 78</tt>  <tt class="py-line">         </tt>
<a name="Packet.decode"></a><div id="Packet.decode-def"><a name="L79"></a><tt class="py-lineno"> 79</tt> <a class="py-toggle" href="#" id="Packet.decode-toggle" onclick="return toggle('Packet.decode');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="ProvCon.TFTP.Protocol.Packet-class.html#decode">decode</a> <tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">header_buffer</tt><tt class="py-op">)</tt><tt class="py-op">:</tt>         </tt>
</div><a name="L80"></a><tt class="py-lineno"> 80</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">valid</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt>         </tt>
<a name="L81"></a><tt class="py-lineno"> 81</tt>  <tt class="py-line">        <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L82"></a><tt class="py-lineno"> 82</tt>  <tt class="py-line">            <tt class="py-op">(</tt><tt id="link-21" class="py-name" targets="Variable ProvCon.gui.ProvisioningControl._=ProvCon.gui.ProvisioningControl-module.html#_"><a title="ProvCon.gui.ProvisioningControl._" class="py-name" href="#" onclick="return doclink('link-21', '_', 'link-21');">_</a></tt><tt class="py-op">,</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt><tt class="py-op">)</tt> <tt class="py-op">=</tt> <tt class="py-name">struct</tt><tt class="py-op">.</tt><tt class="py-name">unpack_from</tt> <tt class="py-op">(</tt><tt class="py-string">'BB'</tt><tt class="py-op">,</tt> <tt class="py-name">header_buffer</tt> <tt class="py-op">)</tt> </tt>
<a name="L83"></a><tt class="py-lineno"> 83</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-keyword">in</tt> <tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-22" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.RRQ" class="py-name" href="#" onclick="return doclink('link-22', 'RRQ', 'link-0');">RRQ</a></tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-23" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.WRQ" class="py-name" href="#" onclick="return doclink('link-23', 'WRQ', 'link-1');">WRQ</a></tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L84"></a><tt class="py-lineno"> 84</tt>  <tt class="py-line">                <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L85"></a><tt class="py-lineno"> 85</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">filename</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">mode</tt><tt class="py-op">,</tt> <tt id="link-24" class="py-name"><a title="ProvCon.gui.ProvisioningControl._" class="py-name" href="#" onclick="return doclink('link-24', '_', 'link-21');">_</a></tt> <tt class="py-op">=</tt> <tt class="py-name">header_buffer</tt><tt class="py-op">[</tt><tt class="py-number">2</tt><tt class="py-op">:</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">split</tt><tt class="py-op">(</tt><tt class="py-string">'\0'</tt><tt class="py-op">)</tt> </tt>
<a name="L86"></a><tt class="py-lineno"> 86</tt>  <tt class="py-line">                <tt class="py-keyword">except</tt> <tt class="py-name">ValueError</tt><tt class="py-op">:</tt> </tt>
<a name="L87"></a><tt class="py-lineno"> 87</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">valid</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L88"></a><tt class="py-lineno"> 88</tt>  <tt class="py-line">            <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-op">==</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-25" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.DATA" class="py-name" href="#" onclick="return doclink('link-25', 'DATA', 'link-2');">DATA</a></tt><tt class="py-op">:</tt> </tt>
<a name="L89"></a><tt class="py-lineno"> 89</tt>  <tt class="py-line">                <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt><tt class="py-op">,</tt><tt class="py-op">)</tt> <tt class="py-op">=</tt> <tt class="py-name">struct</tt><tt class="py-op">.</tt><tt class="py-name">unpack_from</tt><tt class="py-op">(</tt><tt class="py-string">'H'</tt><tt class="py-op">,</tt> <tt class="py-name">header_buffer</tt><tt class="py-op">[</tt><tt class="py-number">2</tt><tt class="py-op">:</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L90"></a><tt class="py-lineno"> 90</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt> <tt class="py-op">=</tt> <tt class="py-name">socket</tt><tt class="py-op">.</tt><tt class="py-name">ntohs</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt><tt class="py-op">)</tt> </tt>
<a name="L91"></a><tt class="py-lineno"> 91</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">data</tt> <tt class="py-op">=</tt> <tt class="py-name">header_buffer</tt><tt class="py-op">[</tt><tt class="py-number">4</tt><tt class="py-op">:</tt><tt class="py-op">]</tt> </tt>
<a name="L92"></a><tt class="py-lineno"> 92</tt>  <tt class="py-line">            <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-op">==</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-26" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ERROR" class="py-name" href="#" onclick="return doclink('link-26', 'ERROR', 'link-4');">ERROR</a></tt><tt class="py-op">:</tt> </tt>
<a name="L93"></a><tt class="py-lineno"> 93</tt>  <tt class="py-line">                <tt class="py-op">(</tt><tt id="link-27" class="py-name"><a title="ProvCon.gui.ProvisioningControl._" class="py-name" href="#" onclick="return doclink('link-27', '_', 'link-21');">_</a></tt><tt class="py-op">,</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errorcode</tt><tt class="py-op">)</tt> <tt class="py-op">=</tt> <tt class="py-name">struct</tt><tt class="py-op">.</tt><tt class="py-name">unpack_from</tt><tt class="py-op">(</tt><tt class="py-string">'BB'</tt><tt class="py-op">,</tt> <tt class="py-name">header_buffer</tt><tt class="py-op">[</tt><tt class="py-number">2</tt><tt class="py-op">:</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L94"></a><tt class="py-lineno"> 94</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errormessage</tt> <tt class="py-op">=</tt> <tt class="py-name">header_buffer</tt><tt class="py-op">[</tt><tt class="py-number">4</tt><tt class="py-op">:</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> </tt>
<a name="L95"></a><tt class="py-lineno"> 95</tt>  <tt class="py-line">            <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-op">==</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-28" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ACK" class="py-name" href="#" onclick="return doclink('link-28', 'ACK', 'link-3');">ACK</a></tt><tt class="py-op">:</tt> </tt>
<a name="L96"></a><tt class="py-lineno"> 96</tt>  <tt class="py-line">                <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt><tt class="py-op">,</tt><tt class="py-op">)</tt> <tt class="py-op">=</tt> <tt class="py-name">struct</tt><tt class="py-op">.</tt><tt class="py-name">unpack_from</tt><tt class="py-op">(</tt><tt class="py-string">'H'</tt><tt class="py-op">,</tt> <tt class="py-name">header_buffer</tt><tt class="py-op">[</tt><tt class="py-number">2</tt><tt class="py-op">:</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L97"></a><tt class="py-lineno"> 97</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt> <tt class="py-op">=</tt> <tt class="py-name">socket</tt><tt class="py-op">.</tt><tt class="py-name">ntohs</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt><tt class="py-op">)</tt> </tt>
<a name="L98"></a><tt class="py-lineno"> 98</tt>  <tt class="py-line">            <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L99"></a><tt class="py-lineno"> 99</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">valid</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L100"></a><tt class="py-lineno">100</tt>  <tt class="py-line">        <tt class="py-keyword">except</tt> <tt class="py-name">struct</tt><tt class="py-op">.</tt><tt id="link-29" class="py-name" targets="Class ProvCon.docsis.compiler.encoder.error=ProvCon.docsis.compiler.encoder.error-class.html"><a title="ProvCon.docsis.compiler.encoder.error" class="py-name" href="#" onclick="return doclink('link-29', 'error', 'link-29');">error</a></tt><tt class="py-op">:</tt>         </tt>
<a name="L101"></a><tt class="py-lineno">101</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">valid</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
</div><a name="L102"></a><tt class="py-lineno">102</tt>  <tt class="py-line">     </tt>
<a name="Packet.encode"></a><div id="Packet.encode-def"><a name="L103"></a><tt class="py-lineno">103</tt> <a class="py-toggle" href="#" id="Packet.encode-toggle" onclick="return toggle('Packet.encode');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="ProvCon.TFTP.Protocol.Packet-class.html#encode">encode</a> <tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Packet.encode-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Packet.encode-expanded"><a name="L104"></a><tt class="py-lineno">104</tt>  <tt class="py-line">        <tt id="link-30" class="py-name" targets="Method ProvCon.docsis.compiler.config.config.binary()=ProvCon.docsis.compiler.config.config-class.html#binary,Method ProvCon.docsis.compiler.encoder.tlv.binary()=ProvCon.docsis.compiler.encoder.tlv-class.html#binary,Method ProvCon.docsis.compiler.encoder.tlv_multipart.binary()=ProvCon.docsis.compiler.encoder.tlv_multipart-class.html#binary"><a title="ProvCon.docsis.compiler.config.config.binary
ProvCon.docsis.compiler.encoder.tlv.binary
ProvCon.docsis.compiler.encoder.tlv_multipart.binary" class="py-name" href="#" onclick="return doclink('link-30', 'binary', 'link-30');">binary</a></tt> <tt class="py-op">=</tt> <tt class="py-name">struct</tt><tt class="py-op">.</tt><tt class="py-name">pack</tt> <tt class="py-op">(</tt> <tt class="py-string">'BB'</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-op">)</tt> </tt>
<a name="L105"></a><tt class="py-lineno">105</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-keyword">in</tt> <tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-31" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.RRQ" class="py-name" href="#" onclick="return doclink('link-31', 'RRQ', 'link-0');">RRQ</a></tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-32" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.WRQ" class="py-name" href="#" onclick="return doclink('link-32', 'WRQ', 'link-1');">WRQ</a></tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L106"></a><tt class="py-lineno">106</tt>  <tt class="py-line">            <tt id="link-33" class="py-name"><a title="ProvCon.docsis.compiler.config.config.binary
ProvCon.docsis.compiler.encoder.tlv.binary
ProvCon.docsis.compiler.encoder.tlv_multipart.binary" class="py-name" href="#" onclick="return doclink('link-33', 'binary', 'link-30');">binary</a></tt> <tt class="py-op">+=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">filename</tt> <tt class="py-op">+</tt> <tt class="py-string">'\0'</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">mode</tt> <tt class="py-op">+</tt> <tt class="py-string">'\0'</tt> </tt>
<a name="L107"></a><tt class="py-lineno">107</tt>  <tt class="py-line">        <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-keyword">in</tt> <tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-34" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.DATA" class="py-name" href="#" onclick="return doclink('link-34', 'DATA', 'link-2');">DATA</a></tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-35" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ACK" class="py-name" href="#" onclick="return doclink('link-35', 'ACK', 'link-3');">ACK</a></tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L108"></a><tt class="py-lineno">108</tt>  <tt class="py-line">            <tt id="link-36" class="py-name"><a title="ProvCon.docsis.compiler.config.config.binary
ProvCon.docsis.compiler.encoder.tlv.binary
ProvCon.docsis.compiler.encoder.tlv_multipart.binary" class="py-name" href="#" onclick="return doclink('link-36', 'binary', 'link-30');">binary</a></tt> <tt class="py-op">+=</tt> <tt class="py-name">struct</tt><tt class="py-op">.</tt><tt class="py-name">pack</tt> <tt class="py-op">(</tt><tt class="py-string">'H'</tt><tt class="py-op">,</tt> <tt class="py-name">socket</tt><tt class="py-op">.</tt><tt class="py-name">htons</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt><tt class="py-op">)</tt> <tt class="py-op">)</tt> </tt>
<a name="L109"></a><tt class="py-lineno">109</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-op">==</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-37" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.DATA" class="py-name" href="#" onclick="return doclink('link-37', 'DATA', 'link-2');">DATA</a></tt><tt class="py-op">:</tt> </tt>
<a name="L110"></a><tt class="py-lineno">110</tt>  <tt class="py-line">                <tt id="link-38" class="py-name"><a title="ProvCon.docsis.compiler.config.config.binary
ProvCon.docsis.compiler.encoder.tlv.binary
ProvCon.docsis.compiler.encoder.tlv_multipart.binary" class="py-name" href="#" onclick="return doclink('link-38', 'binary', 'link-30');">binary</a></tt> <tt class="py-op">+=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">data</tt> </tt>
<a name="L111"></a><tt class="py-lineno">111</tt>  <tt class="py-line">        <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-op">==</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-39" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ERROR" class="py-name" href="#" onclick="return doclink('link-39', 'ERROR', 'link-4');">ERROR</a></tt><tt class="py-op">:</tt> </tt>
<a name="L112"></a><tt class="py-lineno">112</tt>  <tt class="py-line">            <tt id="link-40" class="py-name"><a title="ProvCon.docsis.compiler.config.config.binary
ProvCon.docsis.compiler.encoder.tlv.binary
ProvCon.docsis.compiler.encoder.tlv_multipart.binary" class="py-name" href="#" onclick="return doclink('link-40', 'binary', 'link-30');">binary</a></tt> <tt class="py-op">+=</tt> <tt class="py-name">struct</tt><tt class="py-op">.</tt><tt class="py-name">pack</tt> <tt class="py-op">(</tt><tt class="py-string">'BB'</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errorcode</tt><tt class="py-op">)</tt> </tt>
<a name="L113"></a><tt class="py-lineno">113</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errormessage</tt> <tt class="py-keyword">is</tt> <tt class="py-name">None</tt><tt class="py-op">:</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errormessage</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-41" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ERRORMESSAGE" class="py-name" href="#" onclick="return doclink('link-41', 'ERRORMESSAGE', 'link-5');">ERRORMESSAGE</a></tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errorcode</tt><tt class="py-op">]</tt> </tt>
<a name="L114"></a><tt class="py-lineno">114</tt>  <tt class="py-line">            <tt id="link-42" class="py-name"><a title="ProvCon.docsis.compiler.config.config.binary
ProvCon.docsis.compiler.encoder.tlv.binary
ProvCon.docsis.compiler.encoder.tlv_multipart.binary" class="py-name" href="#" onclick="return doclink('link-42', 'binary', 'link-30');">binary</a></tt> <tt class="py-op">+=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errormessage</tt> <tt class="py-op">+</tt> <tt class="py-string">'\0'</tt> </tt>
<a name="L115"></a><tt class="py-lineno">115</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt id="link-43" class="py-name"><a title="ProvCon.docsis.compiler.config.config.binary
ProvCon.docsis.compiler.encoder.tlv.binary
ProvCon.docsis.compiler.encoder.tlv_multipart.binary" class="py-name" href="#" onclick="return doclink('link-43', 'binary', 'link-30');">binary</a></tt> </tt>
</div><a name="L116"></a><tt class="py-lineno">116</tt>  <tt class="py-line">     </tt>
<a name="Packet.__repr__"></a><div id="Packet.__repr__-def"><a name="L117"></a><tt class="py-lineno">117</tt> <a class="py-toggle" href="#" id="Packet.__repr__-toggle" onclick="return toggle('Packet.__repr__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="ProvCon.TFTP.Protocol.Packet-class.html#__repr__">__repr__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Packet.__repr__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Packet.__repr__-expanded"><a name="L118"></a><tt class="py-lineno">118</tt>  <tt class="py-line">        <tt class="py-name">r</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-44" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.OPCODENAME" class="py-name" href="#" onclick="return doclink('link-44', 'OPCODENAME', 'link-6');">OPCODENAME</a></tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt><tt class="py-op">]</tt> </tt>
<a name="L119"></a><tt class="py-lineno">119</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-keyword">in</tt> <tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-45" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.RRQ" class="py-name" href="#" onclick="return doclink('link-45', 'RRQ', 'link-0');">RRQ</a></tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-46" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.WRQ" class="py-name" href="#" onclick="return doclink('link-46', 'WRQ', 'link-1');">WRQ</a></tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L120"></a><tt class="py-lineno">120</tt>  <tt class="py-line">            <tt class="py-name">r</tt> <tt class="py-op">+=</tt> <tt class="py-string">' [%s] %s'</tt> <tt class="py-op">%</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">mode</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">filename</tt> <tt class="py-op">)</tt> </tt>
<a name="L121"></a><tt class="py-lineno">121</tt>  <tt class="py-line">        <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt>  <tt class="py-op">==</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-47" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ERROR" class="py-name" href="#" onclick="return doclink('link-47', 'ERROR', 'link-4');">ERROR</a></tt><tt class="py-op">:</tt> </tt>
<a name="L122"></a><tt class="py-lineno">122</tt>  <tt class="py-line">            <tt class="py-name">r</tt> <tt class="py-op">+=</tt> <tt class="py-string">' [%d] %s'</tt> <tt class="py-op">%</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errorcode</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">errormessage</tt><tt class="py-op">)</tt> </tt>
<a name="L123"></a><tt class="py-lineno">123</tt>  <tt class="py-line">        <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-op">==</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-48" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.DATA" class="py-name" href="#" onclick="return doclink('link-48', 'DATA', 'link-2');">DATA</a></tt><tt class="py-op">:</tt> </tt>
<a name="L124"></a><tt class="py-lineno">124</tt>  <tt class="py-line">            <tt class="py-name">r</tt> <tt class="py-op">+=</tt> <tt class="py-string">' #%d size:%db'</tt> <tt class="py-op">%</tt> <tt class="py-op">(</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt><tt class="py-op">,</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">data</tt><tt class="py-op">)</tt> <tt class="py-op">)</tt> </tt>
<a name="L125"></a><tt class="py-lineno">125</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">r</tt> </tt>
</div></div><a name="L126"></a><tt class="py-lineno">126</tt>  <tt class="py-line">     </tt>
<a name="read_data_source"></a><div id="read_data_source-def"><a name="L127"></a><tt class="py-lineno">127</tt> <a class="py-toggle" href="#" id="read_data_source-toggle" onclick="return toggle('read_data_source');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="ProvCon.TFTP.Protocol-module.html#read_data_source">read_data_source</a><tt class="py-op">(</tt><tt class="py-param">stream</tt><tt class="py-op">,</tt> <tt class="py-param">block_size</tt><tt class="py-op">=</tt><tt class="py-number">512</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="read_data_source-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="read_data_source-expanded"><a name="L128"></a><tt class="py-lineno">128</tt>  <tt class="py-line">    <tt class="py-name">block</tt> <tt class="py-op">=</tt> <tt class="py-name">stream</tt><tt class="py-op">.</tt><tt id="link-49" class="py-name" targets="Method ProvCon.dbui.orm.record.Record.read()=ProvCon.dbui.orm.record.Record-class.html#read"><a title="ProvCon.dbui.orm.record.Record.read" class="py-name" href="#" onclick="return doclink('link-49', 'read', 'link-49');">read</a></tt> <tt class="py-op">(</tt><tt class="py-name">block_size</tt><tt class="py-op">)</tt> </tt>
<a name="L129"></a><tt class="py-lineno">129</tt>  <tt class="py-line">    <tt class="py-keyword">while</tt> <tt class="py-name">True</tt><tt class="py-op">:</tt> </tt>
<a name="L130"></a><tt class="py-lineno">130</tt>  <tt class="py-line">        <tt class="py-keyword">yield</tt> <tt class="py-name">block</tt> </tt>
<a name="L131"></a><tt class="py-lineno">131</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">block</tt><tt class="py-op">)</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">block_size</tt><tt class="py-op">:</tt> <tt class="py-keyword">return</tt> </tt>
<a name="L132"></a><tt class="py-lineno">132</tt>  <tt class="py-line">        <tt class="py-name">block</tt> <tt class="py-op">=</tt> <tt class="py-name">stream</tt><tt class="py-op">.</tt><tt id="link-50" class="py-name"><a title="ProvCon.dbui.orm.record.Record.read" class="py-name" href="#" onclick="return doclink('link-50', 'read', 'link-49');">read</a></tt> <tt class="py-op">(</tt><tt class="py-name">block_size</tt><tt class="py-op">)</tt>             </tt>
</div><a name="L133"></a><tt class="py-lineno">133</tt>  <tt class="py-line"> </tt>
<a name="TFTPProtocolError"></a><div id="TFTPProtocolError-def"><a name="L134"></a><tt class="py-lineno">134</tt> <a class="py-toggle" href="#" id="TFTPProtocolError-toggle" onclick="return toggle('TFTPProtocolError');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="ProvCon.TFTP.Protocol.TFTPProtocolError-class.html">TFTPProtocolError</a><tt class="py-op">(</tt><tt class="py-base-class">Exception</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="TFTPProtocolError-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="TFTPProtocolError-expanded"><a name="L135"></a><tt class="py-lineno">135</tt>  <tt class="py-line">    <tt class="py-keyword">pass</tt> </tt>
</div><a name="L136"></a><tt class="py-lineno">136</tt>  <tt class="py-line"> </tt>
<a name="ReverseTFTPConnection"></a><div id="ReverseTFTPConnection-def"><a name="L137"></a><tt class="py-lineno">137</tt>  <tt class="py-line"><tt class="py-decorator">@</tt><tt class="py-decorator">contextmanager</tt> </tt>
<a name="L138"></a><tt class="py-lineno">138</tt> <a class="py-toggle" href="#" id="ReverseTFTPConnection-toggle" onclick="return toggle('ReverseTFTPConnection');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="ProvCon.TFTP.Protocol-module.html#ReverseTFTPConnection">ReverseTFTPConnection</a><tt class="py-op">(</tt><tt class="py-param">client_address</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="ReverseTFTPConnection-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="ReverseTFTPConnection-expanded"><a name="L139"></a><tt class="py-lineno">139</tt>  <tt class="py-line">    <tt class="py-name">s</tt> <tt class="py-op">=</tt> <tt class="py-name">socket</tt><tt class="py-op">.</tt><tt class="py-name">socket</tt> <tt class="py-op">(</tt><tt class="py-name">socket</tt><tt class="py-op">.</tt><tt class="py-name">AF_INET</tt><tt class="py-op">,</tt> <tt class="py-name">socket</tt><tt class="py-op">.</tt><tt class="py-name">SOCK_DGRAM</tt><tt class="py-op">)</tt> </tt>
<a name="L140"></a><tt class="py-lineno">140</tt>  <tt class="py-line">    <tt class="py-name">s</tt><tt class="py-op">.</tt><tt class="py-name">connect</tt> <tt class="py-op">(</tt><tt class="py-name">client_address</tt><tt class="py-op">)</tt> </tt>
<a name="L141"></a><tt class="py-lineno">141</tt>  <tt class="py-line">    <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L142"></a><tt class="py-lineno">142</tt>  <tt class="py-line">        <tt class="py-keyword">yield</tt> <tt class="py-name">s</tt> </tt>
<a name="L143"></a><tt class="py-lineno">143</tt>  <tt class="py-line">    <tt class="py-keyword">finally</tt><tt class="py-op">:</tt> </tt>
<a name="L144"></a><tt class="py-lineno">144</tt>  <tt class="py-line">        <tt class="py-name">s</tt><tt class="py-op">.</tt><tt class="py-name">close</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L145"></a><tt class="py-lineno">145</tt>  <tt class="py-line">         </tt>
<a name="Handle_RRQ"></a><div id="Handle_RRQ-def"><a name="L146"></a><tt class="py-lineno">146</tt> <a class="py-toggle" href="#" id="Handle_RRQ-toggle" onclick="return toggle('Handle_RRQ');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="ProvCon.TFTP.Protocol-module.html#Handle_RRQ">Handle_RRQ</a> <tt class="py-op">(</tt> <tt class="py-param">initiating_packet</tt><tt class="py-op">,</tt> <tt class="py-param">client_address</tt><tt class="py-op">,</tt> <tt class="py-param">data_source_stream</tt><tt class="py-op">,</tt> <tt class="py-op">**</tt><tt class="py-param">kkw</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Handle_RRQ-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="Handle_RRQ-expanded"><a name="L147"></a><tt class="py-lineno">147</tt>  <tt class="py-line">    <tt class="py-name">stats</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt class="py-number">0</tt><tt class="py-op">,</tt><tt class="py-number">0</tt><tt class="py-op">)</tt> </tt>
<a name="L148"></a><tt class="py-lineno">148</tt>  <tt class="py-line">    <tt class="py-name">total_data_sent</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L149"></a><tt class="py-lineno">149</tt>  <tt class="py-line">    <tt class="py-keyword">with</tt> <tt id="link-51" class="py-name" targets="Function ProvCon.TFTP.Protocol.ReverseTFTPConnection()=ProvCon.TFTP.Protocol-module.html#ReverseTFTPConnection"><a title="ProvCon.TFTP.Protocol.ReverseTFTPConnection" class="py-name" href="#" onclick="return doclink('link-51', 'ReverseTFTPConnection', 'link-51');">ReverseTFTPConnection</a></tt><tt class="py-op">(</tt><tt class="py-name">client_address</tt><tt class="py-op">)</tt> <tt class="py-keyword">as</tt> <tt class="py-name">local_socket</tt><tt class="py-op">:</tt> </tt>
<a name="L150"></a><tt class="py-lineno">150</tt>  <tt class="py-line">        <tt class="py-op">(</tt><tt class="py-name">ipacket</tt><tt class="py-op">,</tt> <tt class="py-name">opacket</tt><tt class="py-op">)</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt id="link-52" class="py-name" targets="Class ProvCon.TFTP.Protocol.Packet=ProvCon.TFTP.Protocol.Packet-class.html"><a title="ProvCon.TFTP.Protocol.Packet" class="py-name" href="#" onclick="return doclink('link-52', 'Packet', 'link-52');">Packet</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt id="link-53" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet" class="py-name" href="#" onclick="return doclink('link-53', 'Packet', 'link-52');">Packet</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt>         </tt>
<a name="L151"></a><tt class="py-lineno">151</tt>  <tt class="py-line">        <tt class="py-name">local_socket</tt><tt class="py-op">.</tt><tt class="py-name">settimeout</tt> <tt class="py-op">(</tt> <tt class="py-name">kkw</tt><tt class="py-op">.</tt><tt id="link-54" class="py-name"><a title="ProvCon.dbui.orm.recordsearch.OIDSearchList.get
ProvCon.func.variables.TracedVariable.get" class="py-name" href="#" onclick="return doclink('link-54', 'get', 'link-12');">get</a></tt> <tt class="py-op">(</tt><tt class="py-string">'timeout'</tt><tt class="py-op">,</tt> <tt class="py-number">2</tt><tt class="py-op">)</tt> <tt class="py-op">)</tt> </tt>
<a name="L152"></a><tt class="py-lineno">152</tt>  <tt class="py-line">         </tt>
<a name="L153"></a><tt class="py-lineno">153</tt>  <tt class="py-line">        <tt class="py-name">opacket</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-op">=</tt> <tt id="link-55" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet" class="py-name" href="#" onclick="return doclink('link-55', 'Packet', 'link-52');">Packet</a></tt><tt class="py-op">.</tt><tt id="link-56" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.DATA" class="py-name" href="#" onclick="return doclink('link-56', 'DATA', 'link-2');">DATA</a></tt> </tt>
<a name="L154"></a><tt class="py-lineno">154</tt>  <tt class="py-line">        <tt class="py-name">opacket</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
<a name="L155"></a><tt class="py-lineno">155</tt>  <tt class="py-line">     </tt>
<a name="L156"></a><tt class="py-lineno">156</tt>  <tt class="py-line">        <tt class="py-name">max_timeouts</tt> <tt class="py-op">=</tt> <tt class="py-name">kkw</tt><tt class="py-op">.</tt><tt id="link-57" class="py-name"><a title="ProvCon.dbui.orm.recordsearch.OIDSearchList.get
ProvCon.func.variables.TracedVariable.get" class="py-name" href="#" onclick="return doclink('link-57', 'get', 'link-12');">get</a></tt> <tt class="py-op">(</tt> <tt class="py-string">'max_timeouts'</tt><tt class="py-op">,</tt> <tt class="py-number">5</tt> <tt class="py-op">)</tt> </tt>
<a name="L157"></a><tt class="py-lineno">157</tt>  <tt class="py-line">        <tt class="py-name">max_bad_ack</tt> <tt class="py-op">=</tt> <tt class="py-name">kkw</tt><tt class="py-op">.</tt><tt id="link-58" class="py-name"><a title="ProvCon.dbui.orm.recordsearch.OIDSearchList.get
ProvCon.func.variables.TracedVariable.get" class="py-name" href="#" onclick="return doclink('link-58', 'get', 'link-12');">get</a></tt> <tt class="py-op">(</tt> <tt class="py-string">'max_bad_ack'</tt><tt class="py-op">,</tt> <tt class="py-number">3</tt> <tt class="py-op">)</tt> </tt>
<a name="L158"></a><tt class="py-lineno">158</tt>  <tt class="py-line">        <tt class="py-name">block_size</tt> <tt class="py-op">=</tt> <tt class="py-name">kkw</tt><tt class="py-op">.</tt><tt id="link-59" class="py-name"><a title="ProvCon.dbui.orm.recordsearch.OIDSearchList.get
ProvCon.func.variables.TracedVariable.get" class="py-name" href="#" onclick="return doclink('link-59', 'get', 'link-12');">get</a></tt> <tt class="py-op">(</tt> <tt class="py-string">'block_size'</tt><tt class="py-op">,</tt> <tt class="py-number">512</tt> <tt class="py-op">)</tt> </tt>
<a name="L159"></a><tt class="py-lineno">159</tt>  <tt class="py-line">         </tt>
<a name="L160"></a><tt class="py-lineno">160</tt>  <tt class="py-line">        <tt class="py-name">timeouts</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L161"></a><tt class="py-lineno">161</tt>  <tt class="py-line">        <tt class="py-name">bad_ack</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L162"></a><tt class="py-lineno">162</tt>  <tt class="py-line">        <tt class="py-name">current_blockno</tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
<a name="L163"></a><tt class="py-lineno">163</tt>  <tt class="py-line"> </tt>
<a name="L164"></a><tt class="py-lineno">164</tt>  <tt class="py-line">        <tt class="py-name">start_time</tt> <tt class="py-op">=</tt> <tt class="py-name">time</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L165"></a><tt class="py-lineno">165</tt>  <tt class="py-line">                </tt>
<a name="L166"></a><tt class="py-lineno">166</tt>  <tt class="py-line">        <tt class="py-name">data_block</tt> <tt class="py-op">=</tt> <tt class="py-name">data_source_stream</tt><tt class="py-op">.</tt><tt id="link-60" class="py-name"><a title="ProvCon.dbui.orm.record.Record.read" class="py-name" href="#" onclick="return doclink('link-60', 'read', 'link-49');">read</a></tt> <tt class="py-op">(</tt><tt class="py-name">block_size</tt><tt class="py-op">)</tt>         </tt>
<a name="L167"></a><tt class="py-lineno">167</tt>  <tt class="py-line">        <tt class="py-keyword">while</tt> <tt class="py-name">True</tt><tt class="py-op">:</tt> </tt>
<a name="L168"></a><tt class="py-lineno">168</tt>  <tt class="py-line">            <tt class="py-name">opacket</tt><tt class="py-op">.</tt><tt class="py-name">data</tt> <tt class="py-op">=</tt> <tt class="py-name">data_block</tt> </tt>
<a name="L169"></a><tt class="py-lineno">169</tt>  <tt class="py-line">            <tt class="py-name">opacket</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt> <tt class="py-op">=</tt> <tt class="py-name">current_blockno</tt> </tt>
<a name="L170"></a><tt class="py-lineno">170</tt>  <tt class="py-line">            <tt class="py-name">local_socket</tt><tt class="py-op">.</tt><tt class="py-name">send</tt> <tt class="py-op">(</tt> <tt class="py-name">opacket</tt><tt class="py-op">.</tt><tt id="link-61" class="py-name" targets="Method ProvCon.TFTP.Protocol.Packet.encode()=ProvCon.TFTP.Protocol.Packet-class.html#encode,Method ProvCon.dbui.meta.field.Field.encode()=ProvCon.dbui.meta.field.Field-class.html#encode"><a title="ProvCon.TFTP.Protocol.Packet.encode
ProvCon.dbui.meta.field.Field.encode" class="py-name" href="#" onclick="return doclink('link-61', 'encode', 'link-61');">encode</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> <tt class="py-op">)</tt> </tt>
<a name="L171"></a><tt class="py-lineno">171</tt>  <tt class="py-line">            <tt class="py-name">total_data_sent</tt> <tt class="py-op">+=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">data_block</tt><tt class="py-op">)</tt> </tt>
<a name="L172"></a><tt class="py-lineno">172</tt>  <tt class="py-line">         </tt>
<a name="L173"></a><tt class="py-lineno">173</tt>  <tt class="py-line">            <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L174"></a><tt class="py-lineno">174</tt>  <tt class="py-line">                <tt class="py-name">ipacket</tt><tt class="py-op">.</tt><tt id="link-62" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.decode
ProvCon.dbui.meta.field.Field.decode" class="py-name" href="#" onclick="return doclink('link-62', 'decode', 'link-20');">decode</a></tt> <tt class="py-op">(</tt> <tt class="py-name">local_socket</tt><tt class="py-op">.</tt><tt class="py-name">recv</tt><tt class="py-op">(</tt><tt class="py-number">4</tt><tt class="py-op">)</tt> <tt class="py-op">)</tt>                 </tt>
<a name="L175"></a><tt class="py-lineno">175</tt>  <tt class="py-line">                <tt class="py-name">timeouts</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L176"></a><tt class="py-lineno">176</tt>  <tt class="py-line">            <tt class="py-keyword">except</tt> <tt class="py-name">socket</tt><tt class="py-op">.</tt><tt class="py-name">timeout</tt><tt class="py-op">:</tt> </tt>
<a name="L177"></a><tt class="py-lineno">177</tt>  <tt class="py-line">                <tt class="py-name">timeouts</tt> <tt class="py-op">+=</tt> <tt class="py-number">1</tt> </tt>
<a name="L178"></a><tt class="py-lineno">178</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">timeouts</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">max_timeouts</tt><tt class="py-op">:</tt> </tt>
<a name="L179"></a><tt class="py-lineno">179</tt>  <tt class="py-line">                    <tt class="py-keyword">raise</tt> <tt id="link-63" class="py-name" targets="Class ProvCon.TFTP.Protocol.TFTPProtocolError=ProvCon.TFTP.Protocol.TFTPProtocolError-class.html"><a title="ProvCon.TFTP.Protocol.TFTPProtocolError" class="py-name" href="#" onclick="return doclink('link-63', 'TFTPProtocolError', 'link-63');">TFTPProtocolError</a></tt> <tt class="py-op">(</tt> <tt class="py-string">"RRQ {0} from {1}. Timeout waiting for ACK."</tt><tt class="py-op">.</tt><tt class="py-name">format</tt><tt class="py-op">(</tt><tt class="py-name">initiating_packet</tt><tt class="py-op">.</tt><tt class="py-name">filename</tt><tt class="py-op">,</tt> <tt class="py-name">client_address</tt><tt class="py-op">)</tt> <tt class="py-op">)</tt> </tt>
<a name="L180"></a><tt class="py-lineno">180</tt>  <tt class="py-line">                <tt class="py-keyword">continue</tt> </tt>
<a name="L181"></a><tt class="py-lineno">181</tt>  <tt class="py-line">             </tt>
<a name="L182"></a><tt class="py-lineno">182</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">ipacket</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-op">==</tt> <tt id="link-64" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet" class="py-name" href="#" onclick="return doclink('link-64', 'Packet', 'link-52');">Packet</a></tt><tt class="py-op">.</tt><tt id="link-65" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ERROR" class="py-name" href="#" onclick="return doclink('link-65', 'ERROR', 'link-4');">ERROR</a></tt><tt class="py-op">:</tt> </tt>
<a name="L183"></a><tt class="py-lineno">183</tt>  <tt class="py-line">                <tt class="py-keyword">raise</tt> <tt id="link-66" class="py-name"><a title="ProvCon.TFTP.Protocol.TFTPProtocolError" class="py-name" href="#" onclick="return doclink('link-66', 'TFTPProtocolError', 'link-63');">TFTPProtocolError</a></tt> <tt class="py-op">(</tt> <tt class="py-string">"ERROR from {0}. ErrCode {1}, ErrMsg {2}"</tt><tt class="py-op">.</tt><tt class="py-name">format</tt> <tt class="py-op">(</tt><tt class="py-name">client_address</tt><tt class="py-op">,</tt> <tt class="py-name">ipacket</tt><tt class="py-op">.</tt><tt class="py-name">errorcode</tt><tt class="py-op">,</tt> <tt id="link-67" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet" class="py-name" href="#" onclick="return doclink('link-67', 'Packet', 'link-52');">Packet</a></tt><tt class="py-op">.</tt><tt id="link-68" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ERRORMESSAGE" class="py-name" href="#" onclick="return doclink('link-68', 'ERRORMESSAGE', 'link-5');">ERRORMESSAGE</a></tt><tt class="py-op">[</tt><tt class="py-name">ipacket</tt><tt class="py-op">.</tt><tt class="py-name">errorcode</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L184"></a><tt class="py-lineno">184</tt>  <tt class="py-line">            <tt class="py-keyword">elif</tt> <tt class="py-name">ipacket</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt> <tt class="py-op">==</tt> <tt id="link-69" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet" class="py-name" href="#" onclick="return doclink('link-69', 'Packet', 'link-52');">Packet</a></tt><tt class="py-op">.</tt><tt id="link-70" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ACK" class="py-name" href="#" onclick="return doclink('link-70', 'ACK', 'link-3');">ACK</a></tt><tt class="py-op">:</tt> </tt>
<a name="L185"></a><tt class="py-lineno">185</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">ipacket</tt><tt class="py-op">.</tt><tt class="py-name">blockno</tt> <tt class="py-op">!=</tt> <tt class="py-name">current_blockno</tt><tt class="py-op">:</tt> </tt>
<a name="L186"></a><tt class="py-lineno">186</tt>  <tt class="py-line">                    <tt class="py-name">bad_ack</tt> <tt class="py-op">+=</tt> <tt class="py-number">1</tt> </tt>
<a name="L187"></a><tt class="py-lineno">187</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">bad_ack</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">max_bad_ack</tt><tt class="py-op">:</tt> </tt>
<a name="L188"></a><tt class="py-lineno">188</tt>  <tt class="py-line">                        <tt class="py-keyword">raise</tt> <tt id="link-71" class="py-name"><a title="ProvCon.TFTP.Protocol.TFTPProtocolError" class="py-name" href="#" onclick="return doclink('link-71', 'TFTPProtocolError', 'link-63');">TFTPProtocolError</a></tt> <tt class="py-op">(</tt><tt class="py-string">"RRQ {0}. Too many ACKs out of sync."</tt><tt class="py-op">.</tt><tt class="py-name">format</tt><tt class="py-op">(</tt><tt class="py-name">initiating_packet</tt><tt class="py-op">.</tt><tt class="py-name">filename</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L189"></a><tt class="py-lineno">189</tt>  <tt class="py-line">                    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L190"></a><tt class="py-lineno">190</tt>  <tt class="py-line">                        <tt class="py-keyword">continue</tt> </tt>
<a name="L191"></a><tt class="py-lineno">191</tt>  <tt class="py-line">            <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L192"></a><tt class="py-lineno">192</tt>  <tt class="py-line">                <tt class="py-keyword">raise</tt> <tt id="link-72" class="py-name"><a title="ProvCon.TFTP.Protocol.TFTPProtocolError" class="py-name" href="#" onclick="return doclink('link-72', 'TFTPProtocolError', 'link-63');">TFTPProtocolError</a></tt> <tt class="py-op">(</tt><tt class="py-string">"Unexpected opcode: {0} from {1}."</tt><tt class="py-op">.</tt><tt class="py-name">format</tt> <tt class="py-op">(</tt><tt class="py-name">ipacket</tt><tt class="py-op">.</tt><tt class="py-name">opcode</tt><tt class="py-op">,</tt> <tt class="py-name">client_address</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L193"></a><tt class="py-lineno">193</tt>  <tt class="py-line">     </tt>
<a name="L194"></a><tt class="py-lineno">194</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">data_block</tt><tt class="py-op">)</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">block_size</tt><tt class="py-op">:</tt> <tt class="py-keyword">break</tt> </tt>
<a name="L195"></a><tt class="py-lineno">195</tt>  <tt class="py-line">            <tt class="py-name">current_blockno</tt> <tt class="py-op">+=</tt> <tt class="py-number">1</tt> </tt>
<a name="L196"></a><tt class="py-lineno">196</tt>  <tt class="py-line">            <tt class="py-name">data_block</tt> <tt class="py-op">=</tt> <tt class="py-name">data_source_stream</tt><tt class="py-op">.</tt><tt id="link-73" class="py-name"><a title="ProvCon.dbui.orm.record.Record.read" class="py-name" href="#" onclick="return doclink('link-73', 'read', 'link-49');">read</a></tt><tt class="py-op">(</tt><tt class="py-name">block_size</tt><tt class="py-op">)</tt> </tt>
<a name="L197"></a><tt class="py-lineno">197</tt>  <tt class="py-line">             </tt>
<a name="L198"></a><tt class="py-lineno">198</tt>  <tt class="py-line">        <tt class="py-name">dt</tt> <tt class="py-op">=</tt> <tt class="py-name">time</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-name">start_time</tt> </tt>
<a name="L199"></a><tt class="py-lineno">199</tt>  <tt class="py-line">        <tt class="py-name">speed</tt> <tt class="py-op">=</tt> <tt class="py-name">total_data_sent</tt> <tt class="py-op">/</tt> <tt class="py-name">dt</tt> </tt>
<a name="L200"></a><tt class="py-lineno">200</tt>  <tt class="py-line">        <tt class="py-name">stats</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt class="py-name">total_data_sent</tt><tt class="py-op">,</tt> <tt class="py-name">dt</tt><tt class="py-op">,</tt> <tt class="py-name">speed</tt><tt class="py-op">)</tt> </tt>
<a name="L201"></a><tt class="py-lineno">201</tt>  <tt class="py-line">    <tt class="py-keyword">return</tt> <tt class="py-name">stats</tt> </tt>
</div><a name="L202"></a><tt class="py-lineno">202</tt>  <tt class="py-line"> </tt>
<a name="Handle_WRQ"></a><div id="Handle_WRQ-def"><a name="L203"></a><tt class="py-lineno">203</tt> <a class="py-toggle" href="#" id="Handle_WRQ-toggle" onclick="return toggle('Handle_WRQ');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="ProvCon.TFTP.Protocol-module.html#Handle_WRQ">Handle_WRQ</a><tt class="py-op">(</tt><tt class="py-param">initiating_packet</tt><tt class="py-op">,</tt> <tt class="py-param">client_address</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Handle_WRQ-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="Handle_WRQ-expanded"><a name="L204"></a><tt class="py-lineno">204</tt>  <tt class="py-line">    <tt class="py-keyword">raise</tt> <tt class="py-name">NotImplementedError</tt> </tt>
</div><a name="L205"></a><tt class="py-lineno">205</tt>  <tt class="py-line"> </tt>
<a name="Send_ERROR"></a><div id="Send_ERROR-def"><a name="L206"></a><tt class="py-lineno">206</tt> <a class="py-toggle" href="#" id="Send_ERROR-toggle" onclick="return toggle('Send_ERROR');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="ProvCon.TFTP.Protocol-module.html#Send_ERROR">Send_ERROR</a><tt class="py-op">(</tt><tt class="py-param">client_address</tt><tt class="py-op">,</tt> <tt class="py-param">error_code</tt><tt class="py-op">,</tt> <tt class="py-param">error_message</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Send_ERROR-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="Send_ERROR-expanded"><a name="L207"></a><tt class="py-lineno">207</tt>  <tt class="py-line">    <tt class="py-keyword">with</tt> <tt id="link-74" class="py-name"><a title="ProvCon.TFTP.Protocol.ReverseTFTPConnection" class="py-name" href="#" onclick="return doclink('link-74', 'ReverseTFTPConnection', 'link-51');">ReverseTFTPConnection</a></tt><tt class="py-op">(</tt><tt class="py-name">client_address</tt><tt class="py-op">)</tt> <tt class="py-keyword">as</tt> <tt class="py-name">local_socket</tt><tt class="py-op">:</tt> </tt>
<a name="L208"></a><tt class="py-lineno">208</tt>  <tt class="py-line">        <tt class="py-name">opacket</tt> <tt class="py-op">=</tt> <tt id="link-75" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet" class="py-name" href="#" onclick="return doclink('link-75', 'Packet', 'link-52');">Packet</a></tt> <tt class="py-op">(</tt> <tt class="py-name">opcode</tt><tt class="py-op">=</tt><tt id="link-76" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet" class="py-name" href="#" onclick="return doclink('link-76', 'Packet', 'link-52');">Packet</a></tt><tt class="py-op">.</tt><tt id="link-77" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.ERROR" class="py-name" href="#" onclick="return doclink('link-77', 'ERROR', 'link-4');">ERROR</a></tt><tt class="py-op">,</tt> <tt class="py-name">errorcode</tt> <tt class="py-op">=</tt> <tt class="py-name">error_code</tt><tt class="py-op">,</tt> <tt class="py-name">errormessage</tt> <tt class="py-op">=</tt> <tt class="py-name">error_message</tt> <tt class="py-op">)</tt> </tt>
<a name="L209"></a><tt class="py-lineno">209</tt>  <tt class="py-line">        <tt class="py-name">local_socket</tt><tt class="py-op">.</tt><tt class="py-name">send</tt> <tt class="py-op">(</tt><tt class="py-name">opacket</tt><tt class="py-op">.</tt><tt id="link-78" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.encode
ProvCon.dbui.meta.field.Field.encode" class="py-name" href="#" onclick="return doclink('link-78', 'encode', 'link-61');">encode</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
</div><a name="L210"></a><tt class="py-lineno">210</tt>  <tt class="py-line"> </tt><script type="text/javascript">
<!--
expandto(location.href);
// -->
</script>
</pre>
<br />
<!-- ==================== NAVIGATION BAR ==================== -->
<table class="navbar" border="0" width="100%" cellpadding="0"
       bgcolor="#a0c0ff" cellspacing="0">
  <tr valign="middle">
  <!-- Home link -->
      <th>&nbsp;&nbsp;&nbsp;<a
        href="ProvCon-module.html">Home</a>&nbsp;&nbsp;&nbsp;</th>

  <!-- Tree link -->
      <th>&nbsp;&nbsp;&nbsp;<a
        href="module-tree.html">Trees</a>&nbsp;&nbsp;&nbsp;</th>

  <!-- Index link -->
      <th>&nbsp;&nbsp;&nbsp;<a
        href="identifier-index.html">Indices</a>&nbsp;&nbsp;&nbsp;</th>

  <!-- Help link -->
      <th>&nbsp;&nbsp;&nbsp;<a
        href="help.html">Help</a>&nbsp;&nbsp;&nbsp;</th>

  <!-- Project homepage -->
      <th class="navbar" align="right" width="100%">
        <table border="0" cellpadding="0" cellspacing="0">
          <tr><th class="navbar" align="center"
            >docsis-provisioning</th>
          </tr></table></th>
  </tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" width="100%%">
  <tr>
    <td align="left" class="footer">
    Generated by Epydoc 3.0.1 on Tue Jan 13 12:48:45 2009
    </td>
    <td align="right" class="footer">
      <a target="mainFrame" href="http://epydoc.sourceforge.net"
        >http://epydoc.sourceforge.net</a>
    </td>
  </tr>
</table>

<script type="text/javascript">
  <!--
  // Private objects are initially displayed (because if
  // javascript is turned off then we want them to be
  // visible); but by default, we want to hide them.  So hide
  // them unless we have a cookie that says to show them.
  checkCookie();
  // -->
</script>
</body>
</html>
